We have a legacy thick client product with windows forms initially designed using NetAdvantage 2004 Vol2 and NetAdvantage Ultimate 2011 Vol2. On later versions of Windows 10, the font in our results grid appears different from the MS Sans Serif we are accustomed to seeing, and when a cell is selected, WingDings are displayed. We do not explicitly set any specific font. The only thing we ever set font-wise is to either bold and set a font color so it has been a little difficult to step through the control intitialization and see why it is rendering differently. I do not see where the font is being applied or changed during initialization or event handling. This only seems to affect environments running version 1803 (Creator Update) of Windows 10. Older versions of Windows 10 and all versions of Windows 7 are unaffected. I've attempted to update the font in the grid in the Display Layout Appearance section, but it does not make any difference. The grid's font property is set to Microsoft Sans Serif, 8.25pt in Visual Studio properties page. This is happening across the entire thick client, 100's of forms, not just a few few forms.
Is there possibly a default native font defined in Infragistics that is not available in Windows 10 update? Looking at my Surface Tablet which is running the 1703 update of Windows 10, this issue does not appear, and it seems that the same fonts are installed on both machines.
This is what the form looks like the the design view:
This is what it looks like at run time with a cell selected:
The reason for WingDings being shown in results Grid when selecting a cell could be because of the font that’s being used. It might not be having a fallback font and when it can’t find any font, Grid might be showing WingDings. To ensure this is the case you could do a quick test. Use a Label and TextBox on the Form and see if you were able to observe the same behavior. If the WingDings weren’t showed when you do this test then please send us a sample of this issue and we will investigate it further.
I will continue to look into this issue as soon as I hear from you.
Thanks for looking at this Sahaja. The label and text box controls do not display the same behavior. All of the controls, including the ultra grid, have the font name set to Microsoft Sans Serif. But only the grid is displaying a different font at run time. I narrowed down that the font being displayed in the grid is Bahnscrift. Then, when a cell is selected, the highlighted text is wingdings. I would note that we do not use any custom fonts in our application, we just use the fonts that are included with Windows.
I did notice that the grid control also contains a "Display Layout" property that contains nodes for 'Appearance', each of which contains their own font settings. These font settings were not set by default, so I updated them to use Microsoft Sans Serif in 8 pt, but it still displayed the wayward Bahnscrift and wingdings at run time.
I found I am able to work around the issue by clearing the Bahnscrift font value in the registry and creating a font substitute that maps Bahnscrift to Microsoft Sans Serif. But I don't feel this is the correct approach to resolving the issue, I would rather fix the software issue instead of hacking the registry.
I will look at getting a code sample to you, it will take me a bit to get a small sample that reproduces the same issue.
You seem to be saying some contradictory things here. You repeatedly say that you are not using any custom fonts and that everything in your application is using MS Sans Serif, but then you say that that grid is displaying using Bahnscrift.
Are you saying that Bahnscrift is being used to display the grid even though you have not set it to do so anywhere in your application?
If you don't set a font on anything, then the DotNet framework falls back to the ambient font, which on American English machines is MS Sans Serif. There's nothing in the grid that would change that for any reason. So if your grid is using Bahnscrift then something in your application has to be assigning that font somewhere.
If you search your code for "Bahnscrift" and don't find it, then there are several other places it could be coming from. If you are loading a layout into the grid, the layout might be setting a font on any one of the grid's Appearance properties. In this case, since the font is only appearing in the active cell, then the obvious guess would be the EditCellAppearance on the Override of either the DisplayLayout or the band. It could also be applied to the ActiveCellAppearance, so I would recommend putting a button on your form as a test and then at run-time, check the font name on all of these appearances:
If that doesn't turn up anything useful, then another possibility is that one of these settings is being affected by AppStylist. Check your code for a call to the "StyleManager.Load" method to see if you are loading a style library. If so, then this could be affecting the font without actually setting any of the properties on the grid.
BTW... How did you determine that the grid is display using Bahnscrift? Do you mean the WHOLE grid? Or just the active cell in edit mode?
I don't mean to sound contradictory, but that is absolutely correct. We do not set any fonts in the controls other than Microsoft San Serif. In the design view, MS Sans Serif is displayed, but at run time, the ultragrid, (And yes, the WHOLE grid, and nothing but the grid) displays using Bahnscrift as illustrated in the images in my initial post.
For clarity of the initial post, I only included the image of the grid, but if I were to display the entire form, you would see that all the other labels, text fields, buttons etc would be using MS Sans Serif as expected. This behavior is limited to the grid. In addition to Bahnscrift, when a grid cell is activated in edit mode, the text is rendered as Wingding (which is what first alerted us to an issue).
I am certain that the Bahnscrift font is not being applied by our code. We actually wrap the Infragistics controls and make use of abstracted base forms to provide consistent behavior across the UI. (Yes, this affects all the grids in our UI, approximately 1800 of them) I have actually tested the DisplayLayout in debug to see if we are setting the FontData Name name at runtime, and we are not setting any value there. I also looked for references to StyleManager.Load, and there are no references found in the solution. We set the font name at the control level, and never apply any layout configuration beyond that.
How did I determine the grid is using Bahnscrift? I'm glad you asked. It was actually quite painful. I tried some online font programs where i submitted an image, but wasn't having any luck. So then I painstakingly tested each font (I have 186 on my local workstation) using the same string as the affected grid title "Records Matching Filter Criteria" until I visually found a match. I actually found about a half dozen that were close, but continued to narrow that down until we were certain it was bahnscrift. Then, I updated my registry to point the bahnscrift font to use Arial, and when I restarted and relaunched the form, I found that the grid no longer displayed the wonky font.
Now this is where it gets interesting... I did a little additional digging on Bahnscrift. It turns out that it is a brand new font from Windows that became installed as a system font with update 1803. The only users that are reporting this issue are the ones on Windows 10 Update 1803. My laptop has Windows 10 update 1703, and it is unaffected. It was only with this latest update that we began to have issues. Here is my guess as to what is happening. Because we don't define the font in the grid's display layout, Windows is now applying Bahnscrift as a default font. I know you mentioned that .Net defaults to the ambient font of MS Sans Serif, and I think that is true for Windows 7, but I believe (and I may be wrong) that Windows 10 now uses Segoe UI as the default font, and I am suspecting that as of update 1803, that maybe Bahnscrift is now being applied as a default font in some cases. I attempted to uninstall Bahnscrift, but it is a protected font. Best I could do was create a registry entry for Font Substitute to route to Microsoft Sans Serif anytime Bahnscrift is used.
Thanks for sharing the above information. As you have verified everything that Mike suggested, we need a sample to investigate further. Please send us a sample with this issue reproduced in it and I will work with my team to see if we can add an easier work around for this Bahnscrift font issue when using Windows 10.1803.
Let me know if you have any questions.
We too saw the Wingdings font issue with the Infragistics UltraWin* controls after applying the Windows 10 April 2018 Update, version 1803.
We had to set a default font for all controls and re-issue new builds for our users. A big PITA.
David Cannon said:but I believe (and I may be wrong) that Windows 10 now uses Segoe UI as the default font, and I am suspecting that as of update 1803, that maybe Bahnscrift is now being applied as a default font in some cases
That seems unlikely to me. I mean... if that were the case, then it would be affecting ALL of your controls, not just the grid. There's no reason why the grid would be any different than any other control. The grid is just a class that derives from Control, just like every other control in your application. Whatever is happening in your application is specific to the grid(s). Also, if that were the case, then it would be very easy to see. the grid's Font property would be returning Segoe UI or Bahnscrift, not MS Sans Serif.
What happens if you create a new application and put a grid on a form with some data? Do you get the same results? If so, then that would indicate that there is something going on with your machine that is causing that. If not, it would indicate that there some factor specific to your application. BTW... you mentioned you check for "StyleManager.Load". Did you also check for "DisplayLayout.Load"? That one is a little harder to check for, since it's possible that you could be storing the DisplayLayout in a member variable:
var layout = this.ultraGrid1.DisplayLayout;
And then calling layout.Load.
One other thing to check for would be "PresetSerializer". That's another way you could apply a group of settings to the grid without setting a property directly. Checking for FontData.Name is tough, because this could be set on a wide variety of Appearance objects. There are literally dozens of them that could be affecting cells. One other test you could try is to run this code in a button click and see what it shows in the Output window. That might tell use something about where the font is coming from.
private void DisplayFonts(UltraGrid grid)
Debug.WriteLine(grid.Font.Name, "Grid Font");
AppearanceData appData = new AppearanceData();
AppearancePropFlags flags = AppearancePropFlags.FontName;
grid.DisplayLayout.ResolveLayoutAppearance(ref appData, ref flags, true);
Debug.WriteLine(appData.FontData.Name, "DisplayLayout font");
appData = new AppearanceData();
flags = AppearancePropFlags.FontName;
grid.DisplayLayout.Rows.Cells.ResolveAppearance(ref appData, flags);
Debug.WriteLine(appData.FontData.Name, "Cell Font");
One other thing... I just did a Google search for similar behavior and it looks like you are not the only one experiencing a problem with the update.
That doesn't explain why it's only affecting your WinGrids and not the other controls on the form, but maybe there's more going on here than meets the eye.
You might want to check with Microsoft and see if they have a solution.
Mike Saltzman said:... if that were the case, then it would be affecting ALL of your controls, not just the grid. There's no reason why the grid would be any different than any other control. The grid is just a class that derives from Control
But the grid is a little different from the other controls in that it contains a DisplayLayout property. All of our controls, including the grid set the default font property to Microsoft Sans Serif. But what we haven't set is the Display Layout or Appearance properties. (I did apply your DisplayFonts function to the form and verified that the appearance data is never being set.)
My thought would be that if the Display Layout Appearance does not define font data, that it should resolve to the font data on the control, but we seem to be bypassing that and looking to the system default, which is where we end up with the bahnscrift and wingding issue.
I could not find where we call load on the DisplayLayout, however, when we initialize the grid, we do set a few properties for behavior, such as AllowAddNew and Scrollbars and so on. So here is what I did, I have now set the DisplayLayout for Caption Appearance, Cell Appearance, and HeaderAppearance in the grid initialization class to use the correct font, and now it works without needing a registry hack.